Pipe cutting gauge



Aug. 102 1943-v R. T. ENDERsoN PIPE CUTTING GAUGE Filed Sept. 28, 1942 IN V EN TOR.

W/caemav@ ATTORNEYS Pa'te'nted Aug.. l, 1943 j UNITED' Smm w` Application September 2S, 1%42, Serial No. 459,989'

' Q4 claims. (ci. 33-17/1):

Thisfinventionirelatesto a pipe cutting gauge and has for` an object to provide la-device Vfor defining a line on a length of pipe, at adesired angle to the axis of the pipe, 'so that angular pipe joints may be made without the usual eX- periments.

A further object is to provide apparatus of this character which will be formed of a few strong, simple and durable parts, which will be inexpensive to manufacture, and which will not easily get out of order.

With the above and other objects in View the invention consists of certain novel details of construction and combinations of parts hereinafter fully described and claimed, it being understood that vario-us modifications may be resorted to within the scope of the appended claims without departing from the spirit or sacricing any of the advantages of the invention.V

In the accompanying drawing forming a part oi this specication:

Figure 1 is a side elevation of a pipe cutting gauge, constructed in accordance with the nvention, applied to a pipe for marking an angle along which the pipe is to be cut.

Figure 2 is a top plan View of the pipe cutting gauge removed from the pipe.

Figure 3 is a bottom plan view of the pipe cutting gauge shown in Figure 2.

Figure 4 is a cross sectional view taken on the line 4 4 of Figure 3.

Figure 5 is a longitudinal sec-tional view taken on the line 5-5 of Figure 3.

Referring now to the drawing in which likeV characters of reference designate similar parts y in the various views, the pipe cutting gauge com.- prises elongated lower and upper -plates Ill and I l slidable longitudinally relatively to each other, Y

the bottom plate being provided with an elongated elliptical opening I2 and the upper Vplate being provided with legs I3 and being rounded as shown at ill between the legs, the legs, the rounded edge M, cooperating with a rounded edge I5 on a plate I6 which is xed to the bottom plate, to form an elliptical opening when the plates are moved endwise outwardly rela-V tively to each other so that both plates may re- .ceive a pipe 9 and permit the plates being inclined relatively to the axis of the pipe at various angles to indicate a cutting line on the pipe, which may be inscribed by a pointed tool or other marking device.

The lower plate lll is provided at the side edges with upwardly and inwardly bent anges I'I,

, see Figure 4, to provide guides inrwhich the Iside edges of the upper plate II are located; ,y

To facilitate the adjustmentof one plate with relation to the other, theupper plate has one end edge bent at a right angle to the plate vto provide a finger hold I8, see Figure l.

The adjustment of the plates with relation to each other is limited, and the plates are secured in adjusted relation, by a bol-t I9 through an opening in the lower plate and passing through a longitudinal slot 2U in the upper plate, there being a wing nut 2| on thebolt adapted to contact with the upper side of the Iupper plate.`

A plate `22 is secured to the head of the bolt` below the bottom of the lower plate and is provided With hinge ears 23. A link 24 is pivoted at one end between the hinge ears through the medium of a pivot pin 25 passed through the hinge ears and through an opening in the link. The

opposite end of the link is provided with a split ring collar 26 the ends of which are secured to the link through the medium of the bolt 2l and.V

a wing nut 28.

The upper plate is provided with graduations indicated at 29 and one ofthe guide llanges I'I is provided with a graduation indicated at 30, see

Figure 2 with which the graduations on the upper plate are selectively brought into register when the plates are adjusted to effect the marking of the pipe to be cut. Y

In operation the collar 26 is disposed to surround the pipe and is tightly anchored to the pipe by tightening of the wing nut 28 so that the lower end of the link24'wi1l remain stationary. The pipe I'I isA passed through the registering elon-l gated elliptical openings in both the upper plate and the lower plate. To adjust the plates to act as a straight edge facilitating themarking of the Y pipe at a desired angle, the wing nut 2| is loosened and the particular angular graduation, say for example ninety degrees, is brought into register y with the graduation 30 on the guide llange as shownV in Figure 1 and while this is being done both plates have been swung'to the vertical by the link 24,- as indicated by dotted lines in Figure 1. A marking tool may now be run along the.

pipe using the upper plate as a straight edge to mark the ninety degree out to be made.- Lesser angular cuts may be indicated by loosening the wing nut 2l and bringing the desired graduation, say forty-live degrees into registervwith the graduation 2U and by so doing the upper plate is moved relatively to the lower plate and at the Sametime rocks on the 24 to the forty-live degree position relatively to the axis of the pipe as indicated by full lines in Figure 1.

The upper plate I I is provided on its lower face with a stop shoulder 3 I see Figures 3 and 5, which will engage the curved upper end of the substantially elliptical opening I2 in the lower plate to limit outward relative movement of both plates. Also the upper plate II and the plate I6 between the legs I3 of the upper plate, are provided with indicating notches 32 and 33 to denote the center of the pipe.

From the above description it isthought that the construction and operation of the invention will be fully understood without further explanation.

what is claimed is:

1. A pipe cutting gauge comprising elongated upper and lower plates slideably connected-to- ,collar is a split ring secured to the link through Y plate. .Y

per plate, a nut on the bolt contacting with the upper plate, said bolt and nut securing the plates in adjusted relation, hinge lugs secured to and extending downwardly from the lower plate at said bolt, a link pivoted at one end to said lugs, and a collar adapted to surround a pipe passing through the elliptical openings in the plate pivoted to the other end of the link, the upper plate and one of the guide iianges being suitably graduated.

2,. The structure as 0f .claim l and in which the the medium of a bolt and wing nut.

3. The structure as of claim 1 and in which outward movement of the plates relatively to each .other is limited through the medium of a stop shoulder on thelower plate adapted to engage an end `wall of the elliptical opening of the upper 4. The structure as of claim 1 and in which the elliptical opening of the upper plate is defined by spaced lees formed von the upper plate, the upper plate being rounded between the legs, and a plate fixed to the lower plate between the free ends of the legs having a` rounded edge.

REUBEN T. ENDERSON. 

